FIRST MANHATTAN CO. LLC.

Position in ONTO — Onto Innovation Inc.

CIK 728083 NEW YORK, NY

Position in ONTO

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$4,255,407

+$621,786 QoQ

Shares Held

20,751

-9.8% QoQ

Ownership

0.042%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 0.ToString("F0")% Shared 100.ToString("F0")% None 0.ToString("F0")%

Technology · as of Mar 31, 2026

FIRST MANHATTAN CO. LLC. holds $1,529,434,509 across 6 Semiconductor Equipment & Materials names. ONTO ranks #4 (0.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ASML	Asml Holding NV	754,352	$996,370,752
2	AMAT	Applied Materials Inc /De	1,505,425	$514,539,210
3	LRCX	Lam Research Corp	62,214	$13,292,643
4	ONTO	Onto Innovation Inc. This page	20,751	$4,255,407
5	KLAC	Kla Corp	4,383	$645,357
6	Q	Qnity Electronics, Inc.	2,870	$331,140

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$4,255,407	20,751	-9.8%	Shares	Sole	2026-05-15
2025-12-31	$3,633,621	23,018	-3.5%	Shares	Sole	2026-02-17
2025-09-30	$3,082,284	23,853	-2.9%	Shares	Sole	2025-11-14
2025-06-30	$2,478,134	24,553	-7.3%	Shares	Sole	2025-08-14
2025-03-31	$3,215,388	26,499	-13.7%	Shares	Sole	2025-05-15
2024-12-31	$5,117,102	30,702	-0.4%	Shares	Sole	2025-02-14
2024-09-30	$6,400,735	30,838	-0.8%	Shares	Sole	2024-11-14
2024-06-30	$6,826,779	31,093	-2.3%	Shares	Sole	2024-08-15
2024-03-31	$5,765,043	31,837	-13.7%	Shares	Sole	2024-05-15
2023-12-31	$5,643,080	36,907	+0.0%	Shares	Sole	2024-02-13
2023-09-30	$4,705,488	36,900	-2.5%	Shares	Sole	2023-11-14
2023-06-30	$4,408,389	37,850	-41.1%	Shares	Sole	2023-08-14
2023-03-31	$5,648,487	64,275	-2.3%	Shares	Sole	2023-05-15
2022-12-31	$4,478,619	65,775	-0.4%	Shares	Sole	2023-02-14
2022-09-30	$4,230,502	66,050	-7.3%	Shares	Sole	2022-11-14
2022-06-30	$4,968,975	71,250	-0.2%	Shares	Sole	2022-08-15
2022-03-31	$6,202,208	71,380	0.0%	Shares	Sole	2022-05-16
2021-12-31	$7,225,797	71,380	-0.2%	Shares	Sole	2022-02-14
2021-09-30	$5,167,175	71,518	-0.3%	Shares	Sole	2021-11-15
2021-06-30	$5,236,968	71,700	0.0%	Shares	Sole	2021-08-16
2021-03-31	$4,711,407	71,700	-0.3%	Shares	Sole	2021-05-14
2020-12-31	$3,418,845	71,900	0.0%	Shares	Sole	2021-02-16
2020-09-30	$2,141,182	71,900	0.0%	Shares	Sole	2020-11-12
2020-06-30	$2,447,476	71,900	-0.3%	Shares	Sole	2020-08-14
2020-03-31	$2,139,207	72,100	—	Shares	Sole	2020-05-06
No filing history on record for this holder in this stock.